How index using inequalities
5 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Danny Maefengea
am 21 Jun. 2020
Kommentiert: Danny Maefengea
am 22 Jun. 2020
Hello guys, I was doing this exercise and when I tried running my script, errors appeared.
Create a 1*100 vector A with random numbers from 0 to 10
A = randi([0,10],1,100)
Display all the numbers in A that are greater than 5
u = disp(A>5)
Delete all the numbers in A that are greater than 5
u = []
0 Kommentare
Akzeptierte Antwort
Walter Roberson
am 22 Jun. 2020
A>5 creates a logical vector, with each entry being true if the corresponding A was (strictly) greater than 5, and false if the corresponding A was less than or equal to 5.
disp(A>5) would display that logical vector.
To display the contents of A where A > 5 you need to use A>5 to select entries out of A using logical indexing.
SomeArray(logical_mask)
However... disp() does not return any value, and it is an error to attempt to assign disp() to a variable.
u = []
If you had assigned u the parts of A that are greater than 5, then u = [] would just empty out that array, without changing A. You again want to use logical indexing
SomeArray(logical_mask) = []
3 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Data Type Identification finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!